The letter accused the IPCC of taking climate change ‘too’ seriously. In particular, the letter argued that the IPCC had no authority to sponsor a small meeting of climate scientists taking place tomorrow in Lima, Peru. The meeting will consider so-called “geo-engineering” options for responding to worst-case scenarios of catastrophic climate change.

By attacking the IPCC for responding to the risks of climate change too aggressively, the letter marks a major pivot in the politics of climate change, which have officially crossed into the twilight zone.

So, Tony Jones doesn’t mind having plants in his audience. And yes, who else thought something was up when Guy Pearce’s stunt double said, “[global warming’s] just a theory, like gravity.” No one on the qanda panel did, however.